At 415 V that figure drops to 52.5 kA, and at 690 V to 10.5 kA, so selectivity studies need to check the actual system voltage against the curve. The TM240 release is fixed-trip thermal with a magnetic pickup; the adjustable time delay tr maxes at 1 s. The two HQ auxiliary switches (form C) are built in, so you get status feedback without an add-on block. Depth is 70 mm, width 76.2 mm, height 130 mm; it fits the standard SENTRON mounting footprint, so swapping into an existing 3VA panel cutout is straightforward.
Thermal derating — read the real current at your panel ambient
At 55 °C it derates to 153.6 A, at 60 °C to 150.4 A, at 65 °C to 147.2 A, and at 70 °C to 144 A. That matters for a feeder sized at 160 A; you'd want to verify the connected load doesn't exceed the derated value. The storage limit is wider because the breaker isn't carrying current — that's the handling envelope, not the running one.